source: src/ControlStruct/LabelFixer.h @ 51ec1ab

ADTast-experimentalenumforall-pointer-decaypthread-emulationqualifiedEnum
Last change on this file since 51ec1ab was 51ec1ab, checked in by Peter A. Buhr <pabuhr@…>, 3 years ago

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1//
2// Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
3//
4// The contents of this file are covered under the licence agreement in the
5// file "LICENCE" distributed with Cforall.
6//
7// LabelFixer.h --
8//
9// Author           : Rodolfo G. Esteves
10// Created On       : Mon May 18 07:44:20 2015
11// Last Modified By : Peter A. Buhr
12// Last Modified On : Mon Jan 31 22:28:04 2022
13// Update Count     : 35
14//
15
16#pragma once
17
18#include <list>                    // for list
19#include <map>                     // for map
20
21#include "Common/PassVisitor.h"
22#include "Common/SemanticError.h"  // for SemanticError
23#include "SynTree/Label.h"         // for Label
24#include "SynTree/Visitor.h"       // for Visitor
25#include "SynTree/SynTree.h"       // for Visitor Nodes
26
27namespace ControlStruct {
28// normalizes label definitions and generates multi-level exit labels
29class LabelGenerator;
30
31class LabelFixer final : public WithGuards {
32  public:
33        LabelFixer( LabelGenerator *gen = 0 );
34
35        std::map < Label, Statement * > *resolveJumps() throw ( SemanticErrorException );
36
37        // Declarations
38        void previsit( FunctionDecl *functionDecl );
39        void postvisit( FunctionDecl *functionDecl );
40
41        // Statements
42        void previsit( Statement *stmt );
43        void previsit( BranchStmt *branchStmt );
44
45        // Expressions
46        void previsit( LabelAddressExpr *addrExpr );
47
48        Label setLabelsDef( std::list< Label > &, Statement *definition );
49        template< typename UsageNode >
50        void setLabelsUsg( Label, UsageNode *usage = 0 );
51
52  private:
53        class Entry {
54                public:
55                Entry( Statement *to ) : definition( to ) {}
56                bool defined() { return ( definition != 0 ); }
57                bool insideLoop();
58
59                Label get_label() const { return label; }
60                void set_label( Label lab ) { label = lab; }
61
62                Statement *get_definition() const { return definition; }
63                void set_definition( Statement *def ) { definition = def; }
64
65          private:
66                Label label;
67                Statement *definition;
68        };
69
70        std::map < Label, Entry *> labelTable;
71        LabelGenerator *generator;
72};
73} // namespace ControlStruct
74
75// Local Variables: //
76// tab-width: 4 //
77// mode: c++ //
78// compile-command: "make install" //
79// End: //
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